Although sphere lighting is a good rough guide for portraits, a wide range of lighting angles could have been used to achieve the above sense of depth.

虽然球照明是一个很好的粗略肖像画、广泛的照明角度可以用来达到上述深度感。

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In per-pixel lighting, each pixel color is computed individually (as on the left. ) You can see that even when I use low-poly sphere for this example, the lighting still makes it look round.

在逐像素过程中，每个像素的颜色值都是单独计算的（如左图所示）。 就算我们对左图的轮廓使用低模效果，中央光照效果依然看起来非常圆润。

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